29, respectively (P = 0.057). In the receiver-operating characteristic curves, the area under the curves of fold-difference ovomucoid-specific IgE and ovalbumin-specific IgG4 were 0.701 and 0.719, respectively. The challenge positive predictive values of fold-difference ovomucoid-specific IgE and ovalbumin-specific IgG4 were 83.8% (cut-off point 0.934) and 77.8% (cut-off point 1.87), respectively. Moreover, the challenge positive predictive value in patients with both 0.934 &lt; ovomucoid-specific IgE and ovalbumin-specific IgG4 &lt;1.87 was 100%.
The fold-difference levels of allergen-specific IgE and IgG4 in serum are considered useful for monitoring desensitization by low-dose OIT.
The fold-difference levels of allergen-specific IgE and IgG4 in serum are considered useful for monitoring desensitization by low-dose OIT.Sensitization to cat and/or dog allergens during childhood represents a risk factor for the development of allergic diseases later in life.
The study investigated the association of patterns of sensitization to cat and dog allergen components with clinical symptoms of allergy to these furry animals among cat-sensitized children.
The children were evaluated for the presence of bronchial asthma, atopic dermatitis and allergic rhinitis. Their mothers completed a questionnaire on pet exposure at home. Levels of serum IgE cat epitopes Fel d (1, 2, 4), as well as dog components Can f (1, 2, 3, 5) were measured in all the studied children.
Respiratory symptoms following exposure to the cat allergen were most common in children with Fel d 2 epitope (p = 0.041). After contact with a dog, respiratory symptoms were most common in children with Can f 1 epitope (p = 0.042), atopic dermatitis in children with sensitization to both Can f 1 (p = 0.009) and Can f 2 (p = 0.002), whereas eye symptoms occurred mostly in children with Can f 3 (p = 0.039).
Molecular diagnosis in patients with pet allergy may help clinicians to predict clinical symptoms and their severity.
Molecular diagnosis in patients with pet allergy may help clinicians to predict clinical symptoms and their severity.Increased numbers of circulating microparticles (MPs) have long been documented in thalassemia and are considered as a contributing factor in developing the thromboembolic events (TEEs), which are associated with endothelial dysfunction. Indeed, the cellular and molecular mechanisms by which MPs and endothelial cells interact and their consequences remain poorly investigated.
The present study aims to compare the biological effects of MPs obtained from healthy subjects and β-thalassemia/HbE patients on endothelial pro-inflammatory responses.
MPs isolated from plasma by two-step centrifugation from 10 healthy donors, 19 splenectomized and 30 non-splenectomized β-thalassemia/HbE patients were first characterized for their cellular origins, then counted and incubated with primary human umbilical vein endothelial cells (HUVECs). Internalization of MPs into HUVECs and their induction on endothelial cell activation and pro-inflammatory responses were determined.
MPs either from healthy or β-thalassemia/HbE patients could become internalized into endothelial cells, but unlike MPs from healthy donors and non-splenectomized patients, MPs from splenectomized patients were the most active and induced the 2-fold up-regulation of pro-inflammatory genes, IL1B, CXCL8, and CCL2 and 4-fold increase in interleukin-1β. In addition, MPs from both healthy subjects and splenectomized patients at 106/ml failed to trigger the secretion of endothelial IL-6 and IL-8 while higher MP concentration at 5 × 10?/ml significantly induced this secretion.
Plasma MPs isolated from splenectomized β-thalassemia/HbE patients are capable of triggering pro-inflammatory responses from endothelial cells reflected at both gene and protein levels.
Plasma MPs isolated from splenectomized β-thalassemia/HbE patients are capable of triggering pro-inflammatory responses from endothelial cells reflected at both gene and protein levels.Hori nevus, also known as acquired bilateral nevus of Ota-like macules, is a form of dermal melanocytosis found most commonly in women of East Asian heritage. It presents as discrete brown macules on the bilateral cheeks which later coalesce into confluent grey-brown macules and small patches. Herein, we report a classic case of Hori nevus and discuss the histologic findings and differential diagnosis. We also review the proposed pathophysiology, genetic considerations, and treatment options.Syringocystadenoma papilliferum is a rare, benign adnexal tumor of eccrine or apocrine origin that typically presents at birth or before puberty. Syringocystadenoma papilliferum is associated with a nevus sebaceus in about 40% of cases. We present a 50-year old woman with a pink-orange plaque and nodule on the scalp, consistent with syringocystadenoma papilliferum that arose within a nevus sebaceus.Nivolumab is a fully human immunoglobulin G4 immune checkpoint inhibitor antibody approved for use in the treatment of several malignancies such as lung cancer. Cutaneous reactions to checkpoint inhibitors are frequent, appearing in approximately 40% of patients. Although most of the reactions are well tolerated, these drugs can lead to severe cutaneous adverse reactions, but a quick recognition of the symptoms can significantly decrease their mortality. In this case report, we describe a patient with metastatic squamous lung cell carcinoma suffering from nivolumab-induced Stevens-Johnson syndrome with severe skin denudation and mucosal involvement.Report _Case Presentation X Photo Vignette _Letter Authors declare that the contents of this article are their own original unpublished findings. Title Cutaneous calciphylaxis of the glans penis presenting as a gangrenous ulceration Authors Marie Danset, Cécile Lesort, Denis Jullien, Jean Kanitakis Affiliations Dermatology Department, Edouard Herriot Hospital, Hospices Civils de Lyon, Claude Bernard Lyon I University, Lyon, France Corresponding Author Jean Kanitakis, Department of Dermatology, Edouard Herriot Hospital Group, 69437 Lyon Cedex 03, France, Tel 33-472110301, Email jean.kanitakis@univ-lyon1.fr Abstract Calciphylaxis is a rare microvascular disorder causing necrotic skin ulcers. It is characterized by deposits of calcium within vascular walls but its precise pathogenesis remains poorly understood. A major risk factor is end-stage renal disease on dialysis. We report a 67-year-old man with calciphylaxis revealed by an unusual necrotic ulcer of the glans penis. https://www.selleckchem.com/products/alkbh5-inhibitor-1-compound-3.html The patient also presented with bilateral panniculitis of the thighs and a calf ulcer.